The heel of the foot is dry and cracked mainly for the following reasons: 1, dry skin in winter, sebaceous gland secretion reduced, blood circulation slowed down, skin metabolism slowed down, resulting in the heel of the skin thickening and cracking symptoms. Apply moisturizer after each foot wash, and choose loose shoes to reduce friction on local skin. 2, fungal infection leads to thickening of the skin on the heel area, which cannot be cured for a long time and the local blood supply is reduced and cannot supply the skin with the nutrients needed to cause local cracking. You can use clotrimazole ointment, dacrynic ointment to rub the affected area. 3, usually like to eat meat, do not like to eat vegetables will lead to vitamin deficiency in the body, and the heel rough and dry cracked symptoms. 4, the elderly due to the body collagen with white, water content reduced, new cells reduced, the skin elasticity is poor and the heel appears dry and cracked.